Occurrence and etiology of infectious calf diarrhea.
D000818:Animals; D000831:Animals, Newborn; D002417:Cattle; D002418:Cattle Diseases / Q000453:epidemiology*; D003967:Diarrhea / Q000209:etiology / Q000662:veterinary*; D004927:Escherichia coli Infections / Q000662:veterinary*; D012481:Salmonella Infections, Animal / Q000453:epidemiology*; D012621:Seasons